2-D DOA estimation of incoherently distributed sources considering gain-phase perturbations in massive MIMO systems

Y Tian, W Liu, H Xu, S Liu… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
In massive multiple-input multiple-output (MIMO) systems, accurate direction-of-arrival
(DOA) estimation is important for the base station (BS) to perform effective downlink …

High-accuracy DOA estimation algorithm at low SNR through exploiting a supervised index

K Xu, M **ng, R Zhang, E Hanyu, M Sha… - … on Aerospace and …, 2022 - ieeexplore.ieee.org
Performance of direction of arrival (DOA) estimation is one of the most important issues in
array signal processing. Subspace-based algorithms provide a good compromise between …

Source Enumeration Utilizing Adaptive Diagonal Loading and Linear Shrinkage Coefficients

Y Tian, Z Zhang, W Liu, H Chen… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
Source enumeration is typically studied under the assumption of white noise, which may not
be suitable for real-world applications. In this article, a source enumeration algorithm robust …

Spatial covariance matrix reconstruction for DOA estimation in hybrid massive MIMO systems with multiple radio frequency chains

Y Liu, Y Yan, L You, W Wang… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Multiple signal classification (MUSIC) has been widely applied in multiple-input multiple-
output (MIMO) receivers for direction-of-arrival (DOA) estimation. To reduce the cost of radio …

Real-valued DOA estimation utilizing enhanced covariance matrix with unknown mutual coupling

Y Tian, R Wang, H Chen, Y Qin… - IEEE Communications …, 2022 - ieeexplore.ieee.org
Due to the space limitations, the array in a massive multiple-input multiple-output (MIMO)
system often suffers from unknown mutual coupling. Meanwhile, small records of data …

Spatial structure matching-based DoA estimation and tracking for integrated sensing and communication massive MIMO OFDM system

K Xu, X **a, C Li, G Hu, Q Su… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
In this paper, a direction of arrival (DoA) estimation and tracking scheme based on spatial
structure matching is proposed for integrated sensing and communication (ISAC) massive …

DoA estimation for hybrid receivers: Full spatial coverage and successive refinement

A Abdelbadie, M Mostafa, S Bameri… - IEEE Transactions …, 2024 - ieeexplore.ieee.org
We develop two novel algorithms for estimating the direction of arrival (DoA) of multiple
sources in fully-connected and partially-connected hybrid analog/digital (HAD) receivers …

A lightweight deep learning-based algorithm for array imperfection correction and DOA estimation

W Fang, Z Cao, D Yu, X Wang, Z Ma… - Journal of …, 2022 - ieeexplore.ieee.org
Array imperfections will lead to serious performance degradation of the deep neural network
(DNN) based direction of arrival (DOA) estimation in the low earth orbit (LEO) satellite …

Off-grid DOA estimation with mutual coupling via block log-sum minimization and iterative gradient descent

WG Tang, H Jiang, Q Zhang - IEEE Wireless Communications …, 2021 - ieeexplore.ieee.org
Mutual coupling (MC) effect between antennas can deteriorate the direction of arrival (DOA)
estimation performance. Block sparse signal representation (BSSR) is an effective solution …

Wideband digital array DOA estimation method based on SPS-TOPS in the present of mutual coupling

S Yi, H Yang, A Li, N Li, T Li, Z Qu… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
In this article, a spurious peak suppression direction-of-arrival (DOA) estimation method
based on test of orthogonality of projected subspaces (SPS-TOPS) is proposed for …